Heating device

The utility model provides a heating device which comprises a heat pump shell, one side of the heat pump shell is fixedly connected with a connecting plate, a filter cartridge penetrates between the top and the bottom of the connecting plate, and a water inlet pipe is communicated with one side of the heat pump shell and located under the filter cartridge. Compared with the prior art, the utility model has the following beneficial effects: the motor in the case is started to drive the driving shaft to rotate, the driving shaft can drive the bending scraping rod to perform circular motion around the center of the stainless steel filter cartridge when rotating, and meanwhile, the bending scraping rod scrapes the outer cartridge surface of the stainless steel filter cartridge through the silica gel scraping strip; meanwhile, the electromagnetic valve on the water inlet pipe is closed, the electromagnetic valve on the blow-off pipe is opened, the scraped impurities are discharged from the sewage pipe along water